LOVEJOY L Type Hubs With Keyway, Inch Bores
L type hubs are used with L type spiders to form L type couplings for accommodating parallel & angular misalignments between two rotating shafts. The keyway-type hubs provide a fail-safe design by ensuring a secure connection with shafts.
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A| Style | Model | Keyway Size | Outside Dia. | Hub Material | Max. Speed | Coupling Size | Number Of Jaws | Overall Length | Length Through Bore | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 68514428877 | 0.094" x 0.047" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.15" | 0.82" | €22.36 | |
| A | 68514444007 | 0.094" x 0.047" | 1 9/25" | Sintered Iron | 14000 RPM | - | 2 | 1.98" | 3/4" | €10.63 | |
| A | 68514437234 | 0.094" x 0.047" | 1 3/4" | Sintered Iron | 11000 RPM | - | 3 | 2.13" | 0.82" | €12.80 | |
| A | 68514437235 | 0.094" x 0.047" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.15" | 0.82" | €18.70 | |
| A | 68514444713 | 0.094" x 0.047" | 1 2/25" | Sintered Iron | 18000 RPM | - | 2 | 1.71" | 0.62" | €7.18 | |
| A | 68514427613 | 0.094" x 0.047" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.51" | 1" | €30.22 | |
| A | 68514437237 | 0.094" x 0.047" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 3 12/25" | 1.38" | €56.49 | |
| A | 68514446121 | 0.094" x 0.047" | 1 2/25" | Sintered Iron | 18000 RPM | - | 2 | 1.71" | 0.62" | €7.18 | |
| A | 68514441985 | 0.094" x 0.047" | 1 9/25" | Sintered Iron | 14000 RPM | - | 2 | 1.98" | 3/4" | €10.63 | |
| A | 68514438198 | 0.094" x 0.047" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 2 21/25" | 1.06" | €38.20 | |
| A | 68514428089 | 0.094" x 0.047" | 1 3/4" | Sintered Iron | 11000 RPM | - | 3 | 2.13" | 0.82" | €12.80 | |
| A | 68514448829 | 0.125" x 0.062" | 1 9/25" | Sintered Iron | 14000 RPM | - | 2 | 1.98" | 3/4" | €10.63 | |
| A | 68514435745 | 0.125" x 0.062" | 1 3/4" | Sintered Iron | 11000 RPM | - | 3 | 2.13" | 0.82" | €12.18 | |
| A | 68514444070 | 0.125" x 0.062" | 1 3/4" | Sintered Iron | 11000 RPM | - | 3 | 2.13" | 0.82" | €12.18 | |
| A | 68514428879 | 0.125" x 0.062" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.51" | 1" | €28.79 | |
| A | 68514437238 | 0.125" x 0.062" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 3 12/25" | 1.38" | €56.49 | |
| A | 68514410685 | 0.125" x 0.062" | 1 3/4" | Sintered Iron | 11000 RPM | - | 3 | 2.13" | 0.82" | €14.43 | |
| A | 68514411334 | 0.125" x 0.062" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 2 21/25" | 1.06" | €36.38 | |
| A | 68514428875 | 0.125" x 0.062" | 1 3/4" | Sintered Iron | 11000 RPM | - | 3 | 2.13" | 0.82" | €12.80 | |
| A | 68514438202 | 0.125" x 0.062" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 2 21/25" | 1.06" | €38.20 | |
| A | 68514426087 | 0.125" x 0.062" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.15" | 0.82" | €19.64 | |
| A | 68514437246 | 0.125" x 0.062" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.15" | 0.82" | €18.70 | |
| A | 68514426088 | 0.125" x 0.062" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.51" | 1" | €28.79 | |
| A | 68514438199 | 0.125" x 0.062" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 2 21/25" | 1.06" | €38.20 | |
| A | 68514428878 | 0.125" x 0.062" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.15" | 0.82" | €18.70 | |
| A | 68514428876 | 0.125" x 0.062" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.15" | 0.82" | €18.70 | |
| A | 68514411509 | 0.125" x 0.062" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 3 12/25" | 1.38" | €56.49 | |
| A | 68514437247 | 0.125" x 0.062" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 3 12/25" | 1.38" | €56.49 | |
| A | 68514437236 | 0.125" x 0.062" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.15" | 0.82" | €19.64 | |
| A | 68514437074 | 0.125" x 0.062" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.51" | 1" | €30.22 | |
| A | 68514476377 | 0.125" x 0.062" | 1 3/4" | Sintered Iron | 11000 RPM | - | 3 | 2.13" | 0.82" | €154.44 | RFQ
|
| A | 68514426089 | 0.125" x 0.062" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 3 12/25" | 1.38" | €53.80 | |
| A | 68514435881 | 0.125" x 0.062" | 1 3/4" | Sintered Iron | 11000 RPM | - | 3 | 2.13" | 0.82" | €12.80 | |
| A | 68514410687 | 0.125" x 0.062" | 1 3/4" | Sintered Iron | 11000 RPM | - | 3 | 2.13" | 0.82" | €12.80 | |
| A | 68514411084 | 0.125" x 0.062" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.51" | 1" | €30.22 | |
| A | 68514438200 | 0.125" x 0.062" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 2 21/25" | 1.06" | €38.20 | |
| A | 68514435744 | 0.125" x 0.062" | 1 3/4" | Sintered Iron | 11000 RPM | - | 3 | 2.13" | 0.82" | €12.80 | |
| A | 68514444136 | 0.125" x 0.062" | 1 2/25" | Sintered Iron | 18000 RPM | - | 2 | 1.71" | 0.62" | €9.36 | |
| A | 68514451719 | 0.125" x 0.062" | 1 9/25" | Sintered Iron | 14000 RPM | - | 2 | 1.98" | 3/4" | €10.63 | |
| A | 68514437248 | 0.125" x 0.062" | 3 8/25" | Sintered Iron | 5000 RPM | - | 3 | 4.22" | 1 17/25" | €74.76 | |
| A | 68514438201 | 0.156" x 0.078" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 2 21/25" | 1.06" | €38.20 | |
| A | 68514437243 | 0.156" x 0.078" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 3 12/25" | 1.38" | €56.49 | |
| A | 68514437242 | 0.156" x 0.078" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.51" | 1" | €28.79 | |
| A | 68514437245 | 0.156" x 0.078" | 3 3/4" | Sintered Iron | 5000 RPM | - | 3 | 4 1/2" | 1 3/4" | €98.89 | |
| A | 68514437240 | 0.156" x 0.078" | 1 3/4" | Sintered Iron | 11000 RPM | - | 3 | 2.13" | 0.82" | €12.80 | |
| A | 68514451104 | 0.156" x 0.078" | 1 9/25" | Sintered Iron | 14000 RPM | - | 2 | 1.98" | 3/4" | €10.63 | |
| A | 68514437244 | 0.156" x 0.078" | 3 8/25" | Sintered Iron | 5000 RPM | - | 3 | 4.22" | 1 17/25" | €73.56 | |
| A | 68514437241 | 0.156" x 0.094" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.15" | 0.82" | €18.70 | |
| A | 68514476291 | 0.188" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.15" | 0.82" | €156.56 | |
| A | 68514410772 | 0.188" x 0.094" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.15" | 0.82" | €19.64 | |
| A | 68514411086 | 0.188" x 0.094" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.51" | 1" | €30.22 | |
| A | 68514411737 | 0.188" x 0.094" | 3 8/25" | Sintered Iron | 5000 RPM | - | 3 | 4.22" | 1 17/25" | €77.25 | |
| A | 68514412103 | 0.188" x 0.094" | 3 3/4" | Sintered Iron | 5000 RPM | - | 3 | 4 1/2" | 1 3/4" | €98.89 | |
| A | 68514437260 | 0.188" x 0.094" | 3 8/25" | Sintered Iron | 5000 RPM | - | 3 | 4.22" | 1 17/25" | €77.25 | |
| A | 68514438468 | 0.188" x 0.094" | 4 1/2" | Sintered Iron | 5000 RPM | - | 3 | 4.86" | 1.94" | €154.58 | |
| A | 68514411088 | 0.188" x 0.094" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.51" | 1" | €30.22 | |
| A | 68514411338 | 0.188" x 0.094" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 2 21/25" | 1.06" | €38.20 | |
| A | 68514411339 | 0.188" x 0.094" | 2.54" | Sintered Iron | 7000 RPM | - | 3 | 2 21/25" | 1.06" | €36.38 | |
| A | 68514412585 | 0.188" x 0.094" | 6.18" | Cast Iron | 1800 RPM | - | 3 | 7.82" | 3 3/25" | €392.46 | |
| A | 68514411736 | 0.188" x 0.094" | 3 8/25" | Sintered Iron | 5000 RPM | - | 3 | 4.22" | 1 17/25" | €77.25 | |
| A | 68514410774 | 0.188" x 0.094" | 2.11" | Sintered Iron | 9000 RPM | - | 3 | 2.15" | 0.82" | €18.70 |
Features
- Specific Applications: Lovejoy L type hubs are ideal for high torque transmission and speed requirements in sprockets. They also offer highly reliable service for internal combustion power transmission and heavy, medium & light duty electrical motor applications.
- Hub Design::
- Fail-safe design: Even after the spider legs are sheared away, the metallic hubs will interlock and continue to transmit torque. This can be a useful feature during short-term cases of emergency.
- They are bored to a clearance fit tolerance with a single keyway and supplied with a set screw for quick installation.
- Coupling Size-Material Relevance:
- Small-to-medium-sized hubs (L035 to L190) are made of powder metal (sintered iron). They can be pressed very close to the finished net shape, minimise downtime & cost of machining, as well as eliminate scrap production.
- Large-sized hubs (above L190) are made of cast iron. They can handle higher loads.
- Aluminium (AL type) and stainless steel (SS type) hubs are non-standard. The former is preferred for its lightweight and rust-inhibiting properties, while the latter is suitable for pharmaceutical and food-grade applications.
Frequently Asked Questions
Why do jaw couplings fail?
Jaw couplings fail because of the following factors - overload, normal wear, excessive misalignment, insufficient lubrication, vibration and harsh environmental conditions.
What materials are Lovejoy keyless L-type hubs made of?
These hubs feature sintered iron / cast iron construction for ensuring high compression strength and porosity resistance.
How do I find out the size of a Lovejoy coupling?
Scan down the keyway or bore column to the 2-inch bore entry. Read across the L190 column for locating the brand's UPC number - 12303. This number is prefixed with the Lovejoy UPC number - 685144.
Where are Lovejoy jaw couplings used?
These couplings are used in pumps, compressors, gearboxes, mixers, blowers and conveyors.
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